Epilimnetic and hypolimnetic prokaryotic assemblages in a deep holo-holigomictic lake (Comunicazione a convegno)

Type
Label
  • Epilimnetic and hypolimnetic prokaryotic assemblages in a deep holo-holigomictic lake (Comunicazione a convegno) (literal)
Anno
  • 2009-01-01T00:00:00+01:00 (literal)
Alternative label
  • Bertoni R., Callieri C., Corno G., Caravati E. (2009)
    Epilimnetic and hypolimnetic prokaryotic assemblages in a deep holo-holigomictic lake
    in ASLO Aquatic Sciences Meeting, Nizza
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • Bertoni R., Callieri C., Corno G., Caravati E. (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#altreInformazioni
  • Bertoni R., Callieri C., Corno G., Caravati E. 2009. Epilimnetic and hypolimnetic prokaryotic assemblages in a deep holo-holigomictic lake. ASLO (Advancing the Science of Limnology and Oceanography) Aquatic Sciences Meeting Nizza 25-30 gennaio 2009 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#note
  • ASLO (Advancing the Science of Limnology and Oceanography) Aquatic Sciences Meeting Nizza 25-30 gennaio 2009 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#descrizioneSinteticaDelProdotto
  • The increase of hypolimnetic temperature, due to global warming, will likely determine a decrease of overturns and of winter mixing depth in deep oligomictic lakes. The consequent rise in separation of epi and hypolimnetic waters could possibly change the microbial diversity between the two zones. We evaluated the bacterial diversity in epi and hypolimnetic waters of Lake Maggiore, a large deep holo-oligotrophic lake in Northern Italy. We compared abundance, morphology, activity and genetic features of bacteria in the two zones. The average cellular volume of bacteria in epilimnium resulted significantly lower that in hypolimnium (t-test, P<0.001). The mean bacterial carbon production from 14C-Leucine uptake was 0.38 and 0.06 µg C l-1 h-1 in epilimnetic and hypolimnetic waters, respectively. The Denaturating Gradient Gel Electrophoresis (DGGE) profile showed a high genetic diversity between the two zones particularly in late summer. The analysis of samples with CAtalyzed Reporter Deposition- Fluorescence In Situ Hybridization (CARD-FISH) showed a remarkable increase of the percentage of Archaea on total DAPI counts, from surface to deep waters. (literal)
Titolo
  • Epilimnetic and hypolimnetic prokaryotic assemblages in a deep holo-holigomictic lake (literal)
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